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eec82323 | 1 | ;;; nndraft.el --- draft article access for Gnus |
16409b0b GM |
2 | ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 |
3 | ;; Free Software Foundation, Inc. | |
eec82323 | 4 | |
6748645f | 5 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
eec82323 LMI |
6 | ;; Keywords: news |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
24 | ||
25 | ;;; Commentary: | |
26 | ||
27 | ;;; Code: | |
28 | ||
29 | (require 'nnheader) | |
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30 | (require 'nnmail) |
31 | (require 'gnus-start) | |
eec82323 LMI |
32 | (require 'nnmh) |
33 | (require 'nnoo) | |
16409b0b | 34 | (require 'mm-util) |
6748645f LMI |
35 | (eval-when-compile |
36 | (require 'cl) | |
37 | ;; This is just to shut up the byte-compiler. | |
38 | (fset 'nndraft-request-group 'ignore)) | |
eec82323 | 39 | |
6748645f LMI |
40 | (nnoo-declare nndraft |
41 | nnmh) | |
eec82323 | 42 | |
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43 | (defvoo nndraft-directory (nnheader-concat gnus-directory "drafts/") |
44 | "Where nndraft will store its files." | |
45 | nnmh-directory) | |
eec82323 LMI |
46 | |
47 | \f | |
48 | ||
6748645f LMI |
49 | (defvoo nndraft-current-group "" nil nnmh-current-group) |
50 | (defvoo nndraft-get-new-mail nil nil nnmh-get-new-mail) | |
51 | (defvoo nndraft-current-directory nil nil nnmh-current-directory) | |
52 | ||
eec82323 | 53 | (defconst nndraft-version "nndraft 1.0") |
6748645f | 54 | (defvoo nndraft-status-string "" nil nnmh-status-string) |
eec82323 LMI |
55 | |
56 | \f | |
57 | ||
58 | ;;; Interface functions. | |
59 | ||
60 | (nnoo-define-basics nndraft) | |
61 | ||
6748645f LMI |
62 | (deffoo nndraft-open-server (server &optional defs) |
63 | (nnoo-change-server 'nndraft server defs) | |
64 | (cond | |
65 | ((not (file-exists-p nndraft-directory)) | |
66 | (nndraft-close-server) | |
67 | (nnheader-report 'nndraft "No such file or directory: %s" | |
68 | nndraft-directory)) | |
69 | ((not (file-directory-p (file-truename nndraft-directory))) | |
70 | (nndraft-close-server) | |
71 | (nnheader-report 'nndraft "Not a directory: %s" nndraft-directory)) | |
72 | (t | |
73 | (nnheader-report 'nndraft "Opened server %s using directory %s" | |
74 | server nndraft-directory) | |
75 | t))) | |
76 | ||
eec82323 | 77 | (deffoo nndraft-retrieve-headers (articles &optional group server fetch-old) |
6748645f | 78 | (nndraft-possibly-change-group group) |
eec82323 LMI |
79 | (save-excursion |
80 | (set-buffer nntp-server-buffer) | |
81 | (erase-buffer) | |
16409b0b | 82 | (let* (article) |
eec82323 LMI |
83 | ;; We don't support fetching by Message-ID. |
84 | (if (stringp (car articles)) | |
85 | 'headers | |
86 | (while articles | |
16409b0b | 87 | (narrow-to-region (point) (point)) |
eec82323 LMI |
88 | (when (nndraft-request-article |
89 | (setq article (pop articles)) group server (current-buffer)) | |
90 | (goto-char (point-min)) | |
91 | (if (search-forward "\n\n" nil t) | |
92 | (forward-line -1) | |
93 | (goto-char (point-max))) | |
94 | (delete-region (point) (point-max)) | |
16409b0b | 95 | (goto-char (point-min)) |
eec82323 | 96 | (insert (format "221 %d Article retrieved.\n" article)) |
16409b0b GM |
97 | (widen) |
98 | (goto-char (point-max)) | |
eec82323 LMI |
99 | (insert ".\n"))) |
100 | ||
101 | (nnheader-fold-continuation-lines) | |
102 | 'headers)))) | |
103 | ||
eec82323 | 104 | (deffoo nndraft-request-article (id &optional group server buffer) |
6748645f | 105 | (nndraft-possibly-change-group group) |
eec82323 LMI |
106 | (when (numberp id) |
107 | ;; We get the newest file of the auto-saved file and the | |
108 | ;; "real" file. | |
109 | (let* ((file (nndraft-article-filename id)) | |
110 | (auto (nndraft-auto-save-file-name file)) | |
111 | (newest (if (file-newer-than-file-p file auto) file auto)) | |
112 | (nntp-server-buffer (or buffer nntp-server-buffer))) | |
113 | (when (and (file-exists-p newest) | |
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114 | (let ((nnmail-file-coding-system |
115 | (if (file-newer-than-file-p file auto) | |
116 | (if (equal group "drafts") | |
117 | message-draft-coding-system | |
118 | mm-text-coding-system) | |
119 | mm-auto-save-coding-system))) | |
120 | (nnmail-find-file newest))) | |
eec82323 LMI |
121 | (save-excursion |
122 | (set-buffer nntp-server-buffer) | |
123 | (goto-char (point-min)) | |
124 | ;; If there's a mail header separator in this file, | |
125 | ;; we remove it. | |
126 | (when (re-search-forward | |
127 | (concat "^" mail-header-separator "$") nil t) | |
128 | (replace-match "" t t))) | |
129 | t)))) | |
130 | ||
131 | (deffoo nndraft-request-restore-buffer (article &optional group server) | |
132 | "Request a new buffer that is restored to the state of ARTICLE." | |
6748645f LMI |
133 | (nndraft-possibly-change-group group) |
134 | (when (nndraft-request-article article group server (current-buffer)) | |
135 | (message-remove-header "xref") | |
136 | (message-remove-header "lines") | |
137 | t)) | |
eec82323 LMI |
138 | |
139 | (deffoo nndraft-request-update-info (group info &optional server) | |
6748645f LMI |
140 | (nndraft-possibly-change-group group) |
141 | (gnus-info-set-read | |
142 | info | |
143 | (gnus-update-read-articles (gnus-group-prefixed-name group '(nndraft "")) | |
144 | (nndraft-articles) t)) | |
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145 | (let ((marks (nth 3 info))) |
146 | (when marks | |
147 | ;; Nix out all marks except the `unsend'-able article marks. | |
6748645f LMI |
148 | (setcar (nthcdr 3 info) |
149 | (if (assq 'unsend marks) | |
150 | (list (assq 'unsend marks)) | |
151 | nil)))) | |
eec82323 LMI |
152 | t) |
153 | ||
154 | (deffoo nndraft-request-associate-buffer (group) | |
155 | "Associate the current buffer with some article in the draft group." | |
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156 | (nndraft-open-server "") |
157 | (nndraft-request-group group) | |
158 | (nndraft-possibly-change-group group) | |
159 | (let ((gnus-verbose-backends nil) | |
160 | (buf (current-buffer)) | |
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161 | article file) |
162 | (with-temp-buffer | |
163 | (insert-buffer-substring buf) | |
6748645f | 164 | (setq article (nndraft-request-accept-article |
16409b0b GM |
165 | group (nnoo-current-server 'nndraft) t 'noinsert) |
166 | file (nndraft-article-filename article))) | |
167 | (setq buffer-file-name (expand-file-name file) | |
168 | buffer-auto-save-file-name (make-auto-save-file-name)) | |
eec82323 LMI |
169 | (clear-visited-file-modtime) |
170 | article)) | |
171 | ||
6748645f LMI |
172 | (deffoo nndraft-request-expire-articles (articles group &optional server force) |
173 | (nndraft-possibly-change-group group) | |
174 | (let* ((nnmh-allow-delete-final t) | |
175 | (res (nnoo-parent-function 'nndraft | |
176 | 'nnmh-request-expire-articles | |
177 | (list articles group server force))) | |
178 | article) | |
eec82323 LMI |
179 | ;; Delete all the "state" files of articles that have been expired. |
180 | (while articles | |
181 | (unless (memq (setq article (pop articles)) res) | |
6748645f | 182 | (let ((auto (nndraft-auto-save-file-name |
eec82323 | 183 | (nndraft-article-filename article)))) |
eec82323 | 184 | (when (file-exists-p auto) |
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185 | (funcall nnmail-delete-file-function auto))) |
186 | (dolist (backup | |
187 | (let ((kept-new-versions 1) | |
188 | (kept-old-versions 0)) | |
189 | (find-backup-file-name | |
190 | (nndraft-article-filename article)))) | |
191 | (when (file-exists-p backup) | |
192 | (funcall nnmail-delete-file-function backup))))) | |
eec82323 LMI |
193 | res)) |
194 | ||
195 | (deffoo nndraft-request-accept-article (group &optional server last noinsert) | |
6748645f LMI |
196 | (nndraft-possibly-change-group group) |
197 | (let ((gnus-verbose-backends nil)) | |
198 | (nnoo-parent-function 'nndraft 'nnmh-request-accept-article | |
199 | (list group server last noinsert)))) | |
eec82323 | 200 | |
16409b0b GM |
201 | (deffoo nndraft-request-replace-article (article group buffer) |
202 | (nndraft-possibly-change-group group) | |
203 | (let ((nnmail-file-coding-system | |
204 | (if (equal group "drafts") | |
205 | mm-auto-save-coding-system | |
206 | mm-text-coding-system))) | |
207 | (nnoo-parent-function 'nndraft 'nnmh-request-replace-article | |
208 | (list article group buffer)))) | |
209 | ||
eec82323 | 210 | (deffoo nndraft-request-create-group (group &optional server args) |
6748645f LMI |
211 | (nndraft-possibly-change-group group) |
212 | (if (file-exists-p nndraft-current-directory) | |
213 | (if (file-directory-p nndraft-current-directory) | |
eec82323 LMI |
214 | t |
215 | nil) | |
216 | (condition-case () | |
217 | (progn | |
6748645f | 218 | (gnus-make-directory nndraft-current-directory) |
eec82323 LMI |
219 | t) |
220 | (file-error nil)))) | |
221 | ||
222 | \f | |
223 | ;;; Low-Level Interface | |
224 | ||
6748645f LMI |
225 | (defun nndraft-possibly-change-group (group) |
226 | (when (and group | |
227 | (not (equal group nndraft-current-group))) | |
228 | (nndraft-open-server "") | |
229 | (setq nndraft-current-group group) | |
230 | (setq nndraft-current-directory | |
231 | (nnheader-concat nndraft-directory group)))) | |
eec82323 LMI |
232 | |
233 | (defun nndraft-article-filename (article &rest args) | |
234 | (apply 'concat | |
6748645f | 235 | (file-name-as-directory nndraft-current-directory) |
eec82323 LMI |
236 | (int-to-string article) |
237 | args)) | |
238 | ||
239 | (defun nndraft-auto-save-file-name (file) | |
240 | (save-excursion | |
241 | (prog1 | |
242 | (progn | |
243 | (set-buffer (get-buffer-create " *draft tmp*")) | |
244 | (setq buffer-file-name file) | |
245 | (make-auto-save-file-name)) | |
246 | (kill-buffer (current-buffer))))) | |
247 | ||
6748645f LMI |
248 | (defun nndraft-articles () |
249 | "Return the list of messages in the group." | |
250 | (gnus-make-directory nndraft-current-directory) | |
251 | (sort | |
252 | (mapcar 'string-to-int | |
253 | (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t)) | |
254 | '<)) | |
255 | ||
256 | (nnoo-import nndraft | |
257 | (nnmh | |
258 | nnmh-retrieve-headers | |
259 | nnmh-request-group | |
260 | nnmh-close-group | |
16409b0b | 261 | nnmh-request-list |
6748645f | 262 | nnmh-request-newsgroups |
16409b0b | 263 | nnmh-request-move-article)) |
6748645f | 264 | |
eec82323 LMI |
265 | (provide 'nndraft) |
266 | ||
ab5796a9 | 267 | ;;; arch-tag: 3ce26ca0-41cb-48b1-8703-4dad35e188aa |
eec82323 | 268 | ;;; nndraft.el ends here |